A SWATH (small waterplane area twin hull) in head regular waves was investigated by experimental method.The influences of speed and vertical position of towing point on the seakeeping performance of SWATH were analyzed.The experimental results illustrate that: the transfer functions of both heave and pitch modes depict two peak values with the increase of wave length under different speeds;with the increase of advancing speed, the peak value of transfer functions of heave mode remains almost constant, while the peak value of pitch mode changes moderately;the motion responses with the towing point at center of gravity are slightly smaller than those with the towing point at the thrust axis during all wave lengths except the resonant zone at short waves.%在拖曳水池里开展了小水线面双体船顶浪规则波中纵向运动模型试验,研究了航速和拖点垂向位置对船体纵向运动性能的影响.试验结果表明:不同航速下,船体的垂荡响应算子和纵摇响应算子均随着波长变化呈现出双极值;航速对垂荡响应算子极值的影响较小,对纵向响应算子极值的影响较大;除了短波中的共振区附近,拖点在重心时的运动响应算子与拖点在推力轴线时的运动响应算子相比有所减小.
展开▼
